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Trapets

Trapets. Nelinurka, mille üks paar vastaskülgi on paralleelsed ja teine paar vastaskülgi on mitteparalleelsed nimetatakse trapetsiks. alus. haar. haar. alus. Trapetsi paralleelseid külgi nimetatakse trapetsi alusteks. Trapetsi mitteparalleelseid külgi nimetatakse trapetsi haaradeks. D. C.

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Trapets

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  1. Trapets

  2. Nelinurka, mille üks paar vastaskülgi on paralleelsed ja teine paar vastaskülgi on mitteparalleelsed nimetatakse trapetsiks.

  3. alus haar haar alus Trapetsi paralleelseid külgi nimetatakse trapetsi alusteks. Trapetsi mitteparalleelseid külgi nimetatakse trapetsi haaradeks.

  4. D C A B Trapetsi omadus: Trapetsi haara lähisnurkade summa on 1800. DAB + ADC = 1800 ABC + BCD = 1800

  5. D C A B Võrdhaarne trapets • Trapetsit, mille haarad on võrdse pikkusega nimetatakse võrdhaarseks trapetsiks. AD =BC

  6. D C B A Võrdhaarse trapetsi omadus: Võrdhaarse trapetsi aluse lähisnurgad (alusnurgad) on võrdsed. DAB = ABC ADC = BCD

  7. D C A B Täisnurkne trapets • Trapetsit, mille üks haar on risti trapetsi alustega nimetatakse täisnurkseks trapetsiks. DAB = 900

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